Grease absorbing and deflecting attachment for gas-stove flues



June 17, 1930- P.J.HENTSCHEL 1,764,954

GREASE ABSORBING AND DEFLECTING ATTACHMENT FOR GAS STOVE FLUES Filed May 18, 1929 2 Sheets-Sheet l June 17, 1930. P. J. HENTscHEL GREASE ABSORBlNG AND DEFLECTING ATTACHMENT FOR GAS STOVE FLUES Filed May 18. 1929 2 Sheets-Sheet 2 Patented .lune 17, 193@ uarrYlfsrArr.s

y Maasai PATENT OFFICE PAUL J. :HEN'TseHnLQHOr BA1/rrangliae@ii/IARYLAND,` AssiGivoR To MONARCH PRODUCTS COMPANY, or nALTnuonn MARYLAND, A ooRPonATroN or MARYLAND erniasr: ABsORBING AND DErLnoTINe ATTAcnivrEitT non eAs-sTovn FLUEs y y i Application med May 18,

My saidlinvention relates to an improved lcombined grease absorbent device and deflector designed for attachment to the oven flue outlets of gas ranges. y

'.The finventionfaimsto provide a simple economical and'efficient device which may be readily attached to'` the flue ring `and which will effectively collect the sooty and greasy particles contained in the gases issu- What I at present consider preferredem- 2o bodiments of the. invention are-illustrated in the ,accompanying drawings in which z Figure 1l is a section on line l-l of Fig. 2showing'my device as appliedto the flue ring of a gas stove Aoven the top wall of 25 which Vis shown in part in a` conventional manner.A Y Fig.` 2 is a front elevation ofthe device partlybroken away and with the uev ring shown in sectio'n.V f

Fig. -3 is an inside face view of the frame member.v l y Figli is asimilar view showing the cover, padfand retaining springs in place, with parts broken away. f` Y,

Fig. 5 isa detail view ofthe supporting standardand clamp lin partialrear elevation. i Fig. A6 is a `transverse sectional ,det'ail through one'of 'the side bars or walls."

Fig. ,7 .shows in front viewand side ele 40 vationV a modified form-`of supporting bracket; i l I 1J `Fig. 8'is a section on line 8-8 of Fig. 9 showing a modiiication. v Fig. 9 is a'frontelevation'of the same.l

Fig. 10-isV a fragmentary section on line `iop-iOOfFige.

lig. llis an inside face view of the frame Fig. -12 isla view of the cover ,memberA `50 broken awa/y. f g Y. ,l

edge of the iluering in thev manner hereinv after described, so that the side arms will extend upwardly and forwardly with relation to the luefring; Y v Y vThe side bars 3a i andlower and upper cross bars 3b and .3 Aare provided with inwardly Aextended flanges a; b, and c, respe-ctively, and are urthernprovided `with vlugs a', b', and c respectively,` therpurposeor" which will hereinafter appear.` i Y 4` designates a pressed sheetmetal cover member which is provided'with olset edges 4? at its lower and upper ends designed to underlie the flanges b and c respectively, and

'with correspondingly Voli'set side edges 4b Fig. 2) i designed to underlie the side flanges a, this flange .formation making the inner or concave'face oftheV cover in the `form of a curved tray so to speakywithin which is placed a pad of absorbentimaterial; such for example as a sheet of asbestos indicated at The dimensions of the cover 4" are such Y that its upperedge may be inserted andslid .pastfthe llugs a and into engagement .with theV spaces between Aflange o and lugsc, after which the lower edge maybe swung past lugs Z5. and into engagement with flange b, the

side edges engaging the under sides of flanges a Forlholding the cover: and its absorbent pad in place intheframe I provide a plurality of leaf springs t,V preferably formed flat and having their ends seated in the ire'cesses,

oi'grooves formed by thelugs 1b andfc, so

fthat the thusbowedsprings bearagai'nst the inner acefof the pad `5 side margins.-l i y V7 designates `at the centerA Vand what I term a ventilator which y i consists of a pressed sheet vmetal `plate ha-IV.- ing elongated Vopenings forming horizontally disposed louvers for the passageof combustion gases and cooking'vapors, suoli openingsbeing preferably formed byV slitting the metal and pressing the slitted. portions downwardly or inwardly as indicated at 7a orming gas collectors which deect the gases into thel space behind the ventilator..Y This ventilator has its lower edge supported .by the lugs b, while its upper; portion isk sup-- ported in spaced relation to the pad 5 by the lugs a. i Y

yMy preterred means for supporting the deilector in position relative to the ring or vent collar 2 comprises the following instrumentalities. y Y

8 ldesignates asteel bracket post which has an offset lower end portion 8a. short plate member 8b is spot welded or otherwise suit ably secured tothe bracket 8 and extends down oppositevthe ollset portion 8a so kas to form a groove or channel to .receivethe luering?J to which it is clamped by set screw 9.

Preferably the lower part .of the plate or member 8l isl folded back upon itself as indicatedat 8 and the -hole for the screw is thus tapped through a' double thickness of metal which affords ample thicknessA for screw threads.l 'l e 9 designates a delector trarne carrying member or slider which has 1a vertical pas' sageil designed to slldably engage .the bracket lor bar member 8 and he held locked thereon at any desired :ele-vationibyth-:umb screw jecting from its orwand itace which flange Due vto ythe fact has itsv upper face inclined to correspond to the angle of inclination of the lower cross bar 3l which latter is'secured`to the flan-ge 9 by means'such as rivets passing through alining openings in the parts. s f s lrom the above description, it will be Iseen that I provide a v#very simple construction .capable o being 'economicallymanufactured andV readily assembled and :applied Vto the flue ring. llVhen in place, the ascending grease 'and soot laden particles will be caught by the downward-ly flaring vvaries of :the ventilator member andk deflected upward against ytheabsorbent pad' which will collect and retain the grease ,and soot particles; and (the purified gases will be ldellected forward'lyand downward-ly beneathetfhe lower edge of cross member 3c. I Y

`that Vthe -defiector is open Yat the sides andthe space betweeirit and the Y' llueoutletis in unobstructed communication Ywitlithe outside airfthe-npward Ltlow ,of .the

-tlue .products te-`ds to -drawfin therewith a portionof `the air which m'ingles with the flue-pr-v lucts and ,passes therewith through the openings in `the vventilator' s-lieety.r This air, which is of contee, inno'hY cooler than the "products of combustiomhasn coo'ling'or ehi-ll ing efect on :the greasy products nont-ainedin' flue gases and facilitates the deposit thereof on the asbestos sheet on contact therewith. Due vto the fact that the pad is retained solely by the springswhich are detachably held by the lugs, it is a simple matter to remove'the pad and replace it with -a fresh one when this lis desirable.

While it is desirable for some stoves to provide a connection with the liue ring Which will enable the collector tobe adjusted vertically, this may not benecessary in other cases, in which event, l may .providevlthe form of supporting bracket indicated at 11 in Fig. 7 having an inc-lined upper face portion l1a adapted to be riveted to the cross bar 8l and a bifufrcated lower part lll adapted to be clamped to thefiue ring. f

in the modification shown in Figs. 9 to l2 inclusive, I make the attach-ing means as an integrali part oi the frame by casting lthe y trame and abracket in one apiece, :such E:hategral bracket being indicated at il,

In this form,v I dfi-spense with the use of holding springs for the pad or grease collectinglayer ,and likewise .the use of lugs it@ 'hold the ventilator.

To this end, the frame is piovided with holes l2 at its corners to receive screws 18 which-engage threaded openings in projections or :hollow studs 14 carriedV at the vcorners ofthe Vven,til'ato-r.

` Y rlhs cover member il* is Vmade ci? less length than the distance between the holes and the `frame and then the ventilator-,is placed4 in position with theholilow studs 14 bearing Vagainst :the sheet 5 with their bor-eswa'lined with theholes, and the screws V`are. inserted andy screwed into the `threaded bores of' xthe studsA to clamp the part together. lLntliis ,toi-m, the vernilatory is anranged jconcentric tothe/:cover plate so that lis spaced therefrom as widely atA the bottom Las at the top. n

llloreplaoe 'the'padJ it is only necessary to E remove V"the screws,- separate the parts, ,and

zreassemble .with 'a fresh pad. Y l-lavinjg Athus described'my invention, what l. A .devioejfor catching. flue' impurities comprising a frame composed of cross bars vl.and connecting .carryingpside bars having 'inwardly extended Yflanges; a `closure member having flanged edges engaging said aforenamed lianges, an absorbent sheet carried by the inner face of said closure member, means tor holding such :sheet position,A and means for securing said 'frame to a flue ring.

- 2. A device tor catching lue impurities comprising a main curved mem-ber, means for viso connecting one edge to a flue ring, an imsheet and spaced therefrom, said ventilatorV sheet being arranged substantially concen-` tric to said main member, and having elon- `gated horizontally disposed gas .deiiecting passages. Y

3. A device for catching flue impurities comprising a curved frame having means for attachment to a flue ring, a curved cover member, a curved sheet of grease collecting material within said cover member, a ventilator curved to conform to said frame, cover member and sheet, and meansfor Vsecuring said parts together with the ventilator spaced from the collecting sheet and concentric therewith. A

4;. A device according to claim 3 in which the attaching means comprises hollow studs at the corners of the ventilator having threaded bores and screws passing through openings in the frame and collecting sheet and engaging said bores.

5. A device for catching flue impurities of gas stoves comprising a carrying member in the shape of an open frame, means for supporting said frame from the fiue ring so as to project upwardly and forwardly over the iiue outlet, a sheet meta-l closure member carried by said frame, an impurity intercepting sheet overlying the inner face of said closure member and a ventilator beneath said interceptor sheet and spaced therefrom, said ventilator comprising a sheet of metal having horizontal slits with the portions of the sheet above said slits deflected inwardly.

6. A deliector and gas separator for the outlet flues of gas stoves comprising a main carrying member of substantially the shape of a quarter segment of a cylinder having means at its lower edge for connecting it to the back wall of the flue ring of the gas stove, an impurity intercepting sheet overlying the inner face of said main member, and a ventilator member overlying the inner face of said interceptor sheet and spaced therefrom, said ventilator member comprising a metal sheet curved to conform to the main carrying member and having horizontal siltsat intervals from its top to its bottom edges with prtions of the sheet adjacent said silts deflected inwardly whereby portions lof the flue gases are separated and deflected by said deflected v portions into contact with the interceptor sheet.

7. The combination with the flue outlet of a gas stove, of a carrying member rigidly supported adjacent said outlet and extending upwardly and forwardly over said fluev outlet, said member having-relatively narrow side edges, the space between said member and said outletbeing. substantially free and unobstructed at the front and both sides, and

an incombustible impurity intercepting sheet located on the under side of said member.

8. The combination with the flue outlet of a gas stove, of a curved carrying member conforming approximately in shape to a quarter of a cylinder, said member having relatively narrow side edges, means securing one edge of said member adjacent the back of said flue outlet in such position that said member curves upwardly and forwardly over said flue outlet leaving the space between said member and outlet freely ope-n and substantially unobstructed at the front and sides, and a curved incombustible grease interceptor sheet lo- (ated on the under side'of said curved mem- 9. The combination with the fiue outlet of a gas stove, of a member supported adjacent to and extending upwardly and forwardly over said flue outlet, the space between said member and said outlet being free and unobstructed at the front and both sides, said member having louvers, and incombustible impurity collecting material disposed at the back of said member.

10. A device for the purpose described comprising substantially concentric inner and outer spaced connected members providing a passage open at its ends, incombustible impurity collecting means interposed in said passage between said members, said inner member having louvers communicating-with said passage, and means for connectin@r said device to a gas stove so that the said evice projects upwardly and forwardly over the flue outlet, the space between said device and said flue outlet being free and unobstructed at the front and both sides.

In testimony whereof I aiiix my signature.

PAUL J. HENTSCHEL. 

